I currently have two diaper bags. I bought myself an extra large diaper tote from
Mom Of Two Boys Designs. She makes them herself and they are excellent quality and you can custom design your bag. The XL turned out to be pretty huge, but is now what I use to send DD to her babysitter with a days worth of cloth, burp cloths since she's a super spitter, bibs, 1-2 outfits, toys, etc. Also a great bag for being out all day long. She also sells matching changing pads and accessories...but I don't have any yet.
We also have a smaller more traditional J Cole diaper bag from babysrus.
http://www.toysrus.com/product/index...ductId=3368906 I actually like it because of the different strap options and all the inside pockets. I feel like it has good space for 2-3 pocket diapers, my wet bag, burp cloths, an outfit, and my stuff (wallet, water bottle, phone). It isn't as spacious as I need it to be sometimes, but I am a super overpacker and am getting the hang of what I really need to carry

To combat the overstuffed bag I now have a canvas tote in the trunk which has a couple outfits, 2 emergency sposies, and an extra blanket. ....speaking of which I probably need to update the outfits to a bigger size...